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PCF2123

Part Number	PCF2123
Manufacturer	NXP Semiconductors
Description	SPI Real time clock/calendar
Published	Mar 13, 2010
Detailed Description	PCF2123 SPI Real time clock/calendar Rev. 6 — 15 July 2013 Product data sheet 1. General description The PCF2123 is a ...
Datasheet	PCF2123 PDF File

Overview

PCF2123 SPI Real time clock/calendar Rev.
6 — 15 July 2013 Product data sheet 1.
General description The PCF2123 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power applications.
Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.
25 Mbit/s.
An alarm and timer function is also available providing the possibility to generate a wake-up signal on an interrupt pin.
An offset register allows fine tuning of the clock.
2.
Features and benefits  Real time clock provides year, month, day, weekday, hours, minutes, and seconds based on a 32.
768 kHz quartz crystal  Low backup current while running: typical 100 nA at VDD = 2.
0 V and...

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